#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>

using namespace std;

class Date
{
public:
	Date(int year = 0, int month = 0, int day = 0);
	bool operator==(const Date& x);
	bool operator>(const Date& x);
	bool operator>=(const Date& x);
	bool operator<(const Date& x);
	bool operator<=(const Date& x);
	bool operator!=(const Date& x);

	int GetMonthDay(int year, int month);
	Date& operator+=(int day);
	Date operator+(int day);
	Date& operator++();
	Date operator++(int day);


	void print()
	{
		cout << _year << "-" << _month << "-" << _day << endl;
	}
private:
	int _year;
	int _month;
	int _day;
};

